Monthly outlook for Llano Grande, TX: average high 100.9°, average low 79.5°. That is 4° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 16 August (103.6°), the coolest 9 August (75.1°).
100.9°/79.5°
Average high / low
+4°
Above normal
0 / 5
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
100.3°
94.1°
+3.5°
19 August – 28 August
101.9°
92.9°
+5°
29 August – 7 September
at normal
91.2°
—
August records over 66 years
104.5°17 August 2023All-time high
68.2°14 August 1967All-time low
Climate normals and records are computed from the nearest reference point — Las Palmas II (15 mi).
Mon, 1099° / 77°0
99 °
Llano Grande, Monday, 10 August
Light rain. High 99°, low 77°.
Pressure29.97 inHg
Wind16.3 mph S
Humidity39%
Visibility6.2 mi
Dew point67°
Tue, 11100° / 79°0
100 °
Llano Grande, Tuesday, 11 August
Clear. High 100°, low 79°.
Pressure29.97 inHg
Wind16.6 mph SE
Humidity40%
Visibility6.2 mi
Dew point69°
Wed, 1299° / 81°0
99 °
Llano Grande, Wednesday, 12 August
Clear. High 99°, low 81°.
Pressure29.94 inHg
Wind20.3 mph SE
Humidity35%
Visibility6.2 mi
Dew point65°
Thu, 1399° / 82°0
99 °
Llano Grande, Thursday, 13 August
Partly cloudy. High 99°, low 82°.
Pressure29.88 inHg
Wind20.3 mph SE
Humidity34%
Visibility—
Dew point64°
Fri, 1499° / 81°0
99 °
Llano Grande, Friday, 14 August
Overcast. High 99°, low 81°.
Pressure29.97 inHg
Wind20.2 mph SE
Humidity36%
Visibility—
Dew point65°
Sat, 15100° / 82°0
100 °
Llano Grande, Saturday, 15 August
Overcast. High 100°, low 82°.
Pressure30.06 inHg
Wind18.5 mph SE
Humidity42%
Visibility—
Dew point67°
Sun, 16104° / 80°0
104 °
Llano Grande, Sunday, 16 August
Clear. High 104°, low 80°.
Pressure30.06 inHg
Wind19.7 mph SE
Humidity35%
Visibility—
Dew point65°
Mon, 17102° / 77°0
102 °
Llano Grande, Monday, 17 August
Clear. High 102°, low 77°.
Pressure30.00 inHg
Wind18.6 mph SE
Humidity25%
Visibility—
Dew point55°
Tue, 18103° / 78°0
103 °
Llano Grande, Tuesday, 18 August
Clear. High 103°, low 78°.
Pressure29.94 inHg
Wind18.5 mph SE
Humidity31%
Visibility—
Dew point61°
Wed, 19102° / 78°0
102 °
Llano Grande, Wednesday, 19 August
Mostly clear. High 102°, low 78°.
Pressure29.97 inHg
Wind16.2 mph SE
Humidity27%
Visibility—
Dew point57°
Thu, 20104° / 79°0
104 °
Llano Grande, Thursday, 20 August
Clear. High 104°, low 79°.
Pressure29.94 inHg
Wind17.1 mph SE
Humidity28%
Visibility—
Dew point59°
Fri, 21103° / 78°0
103 °
Llano Grande, Friday, 21 August
Clear. High 103°, low 78°.
Pressure29.88 inHg
Wind19 mph SE
Humidity31%
Visibility—
Dew point62°
Sat, 22101° / 80°0
101 °
Llano Grande, Saturday, 22 August
Clear. High 101°, low 80°.
Pressure29.85 inHg
Wind21.1 mph SE
Humidity31%
Visibility—
Dew point62°
Sun, 23102° / 82°0
102 °
Llano Grande, Sunday, 23 August
Overcast. High 102°, low 82°.
Pressure29.85 inHg
Wind21.5 mph SE
Humidity34%
Visibility—
Dew point64°
Mon, 2499° / 80°0
99 °
Llano Grande, Monday, 24 August
Clear. High 99°, low 80°.
Pressure29.88 inHg
Wind19.8 mph SE
Humidity35%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2592° / 78°0.09
92 °
Llano Grande, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high92°
Average low78°
Average precipitation0.09 in
Chance of precipitation43%
Record high99° (2002)
Record low74° (1967)
Wed, 2692° / 78°0.07
92 °
Llano Grande, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high92°
Average low78°
Average precipitation0.07 in
Chance of precipitation43%
Record high101° (2002)
Record low73° (1961)
Thu, 2793° / 78°0.08
93 °
Llano Grande, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high93°
Average low78°
Average precipitation0.08 in
Chance of precipitation33%
Record high100° (2002)
Record low70° (1961)
Fri, 2892° / 77°0.14
92 °
Llano Grande, Friday, 28 August
Climate normal for this date — 60-year average.
Average high92°
Average low77°
Average precipitation0.14 in
Chance of precipitation40%
Record high101° (2023)
Record low72° (1970)
Sat, 2992° / 77°0.12
92 °
Llano Grande, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high92°
Average low77°
Average precipitation0.12 in
Chance of precipitation48%
Record high102° (2012)
Record low71° (2015)
Sun, 3092° / 78°0.12
92 °
Llano Grande, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high92°
Average low78°
Average precipitation0.12 in
Chance of precipitation47%
Record high101° (2012)
Record low73° (1967)
Mon, 3192° / 77°0.13
92 °
Llano Grande, Monday, 31 August
Climate normal for this date — 60-year average.
Average high92°
Average low77°
Average precipitation0.13 in
Chance of precipitation53%
Record high100° (2005)
Record low70° (1967)
Tue, 0192° / 78°0.13
92 °
Llano Grande, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high92°
Average low78°
Average precipitation0.13 in
Chance of precipitation48%
Record high101° (2000)
Record low72° (1967)
Wed, 0292° / 78°0.1
92 °
Llano Grande, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high92°
Average low78°
Average precipitation0.1 in
Chance of precipitation48%
Record high99° (2000)
Record low73° (1969)
Thu, 0391° / 77°0.15
91 °
Llano Grande, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high91°
Average low77°
Average precipitation0.15 in
Chance of precipitation45%
Record high101° (2011)
Record low73° (1987)
Fri, 0491° / 77°0.15
91 °
Llano Grande, Friday, 4 September
Climate normal for this date — 60-year average.
Average high91°
Average low77°
Average precipitation0.15 in
Chance of precipitation55%
Record high104° (2011)
Record low70° (1987)
Sat, 0591° / 77°0.13
91 °
Llano Grande, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high91°
Average low77°
Average precipitation0.13 in
Chance of precipitation50%
Record high106° (2000)
Record low69° (1974)
Sun, 0690° / 77°0.12
90 °
Llano Grande, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high90°
Average low77°
Average precipitation0.12 in
Chance of precipitation55%
Record high101° (2000)
Record low65° (1974)
Mon, 0790° / 76°0.12
90 °
Llano Grande, Monday, 7 September
Climate normal for this date — 60-year average.
Average high90°
Average low76°
Average precipitation0.12 in
Chance of precipitation52%
Record high101° (2023)
Record low66° (1974)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Llano Grande, TX are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Llano Grande, TX since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.